Is it a hub 3.0? That VM would want back. For a Superhub 2 AC or older VM do not want those back, drop it off for recycling.
So if you do have a hub 3.0, what is your situation? Did you leave VM or get a replacement hub 3.0 sent out to you?
In the case of leaving VM, you would get a returns pack sent out to you between 7 to 10 work days after your scheduled account's disconnection date. In the case of a replacement hub, the replacement hub should have come with a collect+ label. You'd put the old hub 3.0+plug in the box the replacement came in. Seal the box, stick the collect+ label on it and drop it off at your nearest collect+ drop off point.
______ Any opinions expressed by myself are entirely my own and do not represent Virgin Media in any way.